Zone Offroad torsion bar keys are made in the USA and are 100% resonant frequency tested to ensure a solid casting. Once tested the keys are CNC machined to ensure the proper amount of lift for your vehicle. These keys are designed lift the front of your truck 2 inches. Zone Offroad shock extensions are highly recommended.Zone Offroad shock extensions (C5202) or longer shocks listed in the accessories are required for this kit.
- 11-19 Silverado/Sierra 2500/3500
100% resonant frequency tested.
Easy installation.
Levels out your truck.
Torsion bar unloading tool required.
35 x 12.50 tires on stock wheels will require trimming.
If after market wheels with less backspacing are used then 33" tires are recommended.
Shock extensions (# c5202) or longer shocks (# 7603) are required.
Optional steering stabilizers (3103/7103) only fit vehicles that came equipped with a steering stabilizer from the factory.
